Air-pump lubricator.



G. M. SOHWEND.

AIR PUMP LUBRICATOR.

APPLICATION FILED NOV. 9, i912.

w o 7 /9 of WITNESSES M SI/VVE/VTOR 6 15mm: c/fll f/Ya, 5

a E JM ATTORNEYS COLUMBIA PLANOGRAPH c0.. WASHINGTON, D. c,

Patented Feb. 3, 1914.

-=GEORGE-M. soHwnNn, 'or QBIRlYIING-HAMfiAizABAMA.

AiR-PfTlVIP teammate.

:Specificationbi' Letters Patent.

PatentectFeb3,-1914.

' Application-filedNovember $1 912. "serial No. 1301384.

' To a'ZZ'Qb 71 am it may concern of Birmingham, infthe county of defi'erson and State otAlabama have invented certain new and useful Improvements in Air-Pump Lubric-ators, of which the following is a specification.

-My invention is animpro-vementin air pump lubricators, and has for its object the provision of me'chanismffor use "with air pumps, wherein means is "provided for throwing a chargeof oil and water into the cylinder of the pump operated by the action of the pump.

In the drawings: F igure 1 is a front'view of theimproved lubricator in connection with a. pump; and Fig. 2"is a transverse vertical section.

In the present embodiment of the invention an outer'cylindrical casingl'is provided, having in its upper'end an opening 2-, which is flanged inwardly, as'shown at 3, and both the opening and the flange are -internally threaded, as shown in Fig. 2. The casing 1 is provided in its bottom with a central nipple 4, and with other nipples'fi and 6, the said nipples being arranged on opposite sides of the nipple 4, and each of the nipples 4, 5 and 6 is internally threaded at its outer end, as shown.

The inner casing 7 of cylindrical form is provided near its upper end with an annular.

marginal rib 8, and with an externally threaded portion 9 below the rib, the said portion engaging the threads of the openings 2. The rib 8 fits against the upper end of the outer casing, and the casing 7 is provided in its lower end with a central nipple 10, the said nipple being in alinement with the nipple 4c of the outer casing. The casing 7 is provided at its upper end with a central longitudinally extending neck 11, and the outer end of the neck is enlarged and externally threaded, as shown at 12, and a cap 13 is threaded onto the said end of the neck. A gasket 14 is arranged between the cap and the upper end of the neck, and a valve 15 is provided fitting against the inner end of the nipple 10 for closing the said nipple. The valve is provided with a stem 16, and a head 17 is secured to the outer end of the stem.

A coil spring 18 encircles the stem between the head 17 and the bottom of the inner casing 7, the said stem acting normally to hold the valve 15*closed. ".lheheadi 17 is "adj'acent to the inner end of the nip le i,- and a' pipe 19 'is f threaded" mm the outer' end of the said nipple. Thecylinders'QO' and 2l' of the pumps are connected to thenipple 5' 6 respectively, by me'ans of pipes 22 and 23, and a check 'va'lve'24is provided'torjea'c hof the '"said pipes adjacent tothe' cylinder. Thespring 18 is juststrongenough tohold the valve 3 closed, under ordinary conditions, to prevent theesca'pe'of theo il which is'held in the casing:7,"'and the'valveis adapted to be opened by the exhaust. "The pipei 19" is connected "with the 'exhaust. The check valves 24 are arranged to' prevent passage of the oil" from the cylinders toward the easing 1. Theoil'maybe inserted in thecasin'g 7 through the neck 11, by'r'emovin'g the cap 13. Thepi'pes"22 and23are'chokedat their entrance to the pump cylinderso that there will be a spravinga'ctionas theoil and water enters the cylinder.

The outer casing 1' is a eondeiising' chamher for the device, and the operation of the "device is as follows In=F lthe 'lubri'cator -=isshewn in connection with the pump. The 'pipe19 connected to the exhaust pipe l9 through which the steam cylinders exhaust, and the pipes 22 and 23 are connected with the air cylinders 20 and 21 of the pump.

The operation of the device is as follows: At every exhaust from the engine, a portion of the exhaust steam passes into the pipe 19, and this exhaust steam enters the casing 1 at the nipple l, and impinging against the head 17 raises the said head, and opens the valve 15 to a slight extent, just sufficient to permit a portion of the oil in the casing 7 to pass out through the nipple 10. The steam that enters the casing 1- at each exhaust is condensed in the said casing, and the water of condensation makes with the oil an emulsion. The said emulsion passes into the air cylinders of the pump, or is drawn into the said cylinders on the downward movement of the piston. Whenever the piston of the air pump moves in one direction, a few drops of the emulsion will be drawn into the cylinder, and when the piston moves in the opposite direction, the emulsion will be sprayed over the walls of the cylinder, thus lubricating the said walls and the piston.

I claim:

1. An air pump lubricator, comprising in combination with the air chamber of the pumps, said chamber having a central internally threaded opening at its upperend, and having a central steam inlet opening at its lower end, and having openings at each side of the inlet opening for connection With the pump cylinders, of a pipe leading from each of the said last-named openings to a cylinder, each pipe having a check valve for preventing movement of fluid from the cylinder to the chamber, an oil holding chamber having an externally threaded por tion for engaging the first-named opening, said chamber having a filling opening at its outer end, and a port at its inner end in alinement with the steam inlet of the condensing chamber, a cap closing the filling opening, a valve within the oil chamber for cooperating with the port to close the same, a stem connect-ed with the valve, a head at the outer end of the stem, said head being adjacent to the inner end of the steam inlet opening, and a spring encircling the stem between the head and the chamber and normally holding the valve closed.

2. An air pump lubricator, comprising in combination with the condensing chamber of the lubricator, said chamber having a central opening at its upper end and an inlet opening at its lower end, and being connected with the pumps, an oil holding chamber received into the opening at the upper end of the condensing chamber, and having means for preventing disengagement thereof, said chamber having a filling opening and having a port at its inner end in alinement with the inlet of the condensing chamber, and a valve normally closing the port, said valve having a head in position to be struck by the steam entering the condensing chamber whereby to open the valve.

3. An air pump lubricator, comprising in combination with the condensing chamber of the lubricator, said chamber having an opening at its upper end and an inlet port at its lower end, and being connected with the exhaust of the pump, an oil holding chamber seated in the opening at the upper end of the condensing chamber and having an outlet adjacent to the inlet of the condensing chamber, and a valve controlling the outlet and adapted to be opened by the steam entering the condensing chamber.

4t. An air pump lubricator comprising a condensing chamber having an inlet for connection with the exhaust of a pump, a chanr her for holding a lubricant having an outlet adjacent to the inlet of the condensing chamher, and a valve controlling the outlet and adapted to be opened by the steam entering the condensing chamber.

GEORGE M. SCHl/VEND. lVitnesses:

JAs. A. MITCHELL, W. J WYNN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

